External Wall Insulation in Finglas

A job typically starts from €180 to €220. Final figures depend on extras, architectural details, and chosen finishes — such as whether silicone-based acrylic render is required for enhanced weather resistance, and whether window cills subject to high water runoff require special powder coating. As an SEAI Registered Contractor (#10423), Isotherm deducts your SEAI grant (up to €8,000 for detached, €6,000 for semi-detached/end-terrace, €3,500 for mid-terrace, and €3,000 for apartments) directly from your invoice at source.

No. The vast majority of mid-century houses in Finglas (Finglas East, West, South, Ballygall, McKee) were constructed with 9-inch hollow-core concrete blocks. These blocks feature internal vertical voids rather than an insulated cavity, meaning pumped bead insulation cannot be injected. External wall insulation (EWI) is universally recognised as the single most effective and permanent solution for hollow-block walls, wrapping the cold concrete in high-density graphite EPS.

For standard residential housing across Finglas, external wall insulation is classified as Exempted Development under Section 4(1)(h) of the Planning and Development Act 2000. It does not require planning permission from Dublin City Council as long as the exterior render finish is consistent with the surrounding streetscape. We review all boundary alignments, footpath clearances, and shared party walls during your physical survey.

Our operations depot and fabrication workshop are located at Unit 20, Westlink Industrial Estate, Kylemore Road, Inchicore, Dublin 10, D10 TD35. Traveling via the M50 Northbound or the Finglas Road / N2 corridor, our direct installation crews and project supervisors reach Finglas in just 15 to 20 minutes. This proximity enables daily site inspections, rapid material dispatch, and strict quality control.

Hollow concrete blocks have high thermal conductivity, causing interior wall surfaces to drop to freezing temperatures during winter. Warm indoor air hits these cold walls and condenses into moisture, breeding black mould. Our NSAI-certified Baumit external wall insulation wraps the structural masonry from the outside, raising internal wall temperatures to room heat, moving the dew point outside, and permanently ending mould formation.

When 100mm to 120mm of Baumit EPS is installed, existing concrete window sills are no longer wide enough. We install custom powder-coated aluminium window sills fabricated by our sister workshop Cills.ie in our Inchicore workshop, featuring welded watertight end caps and thermal insulation pads to eliminate thermal bridging. Our crews also safely unclip ESB meter boxes and gas pipes, remounting them on certified standoff extension brackets.

Yes, 100%. All installation stages—scaffolding, EPS fixing, dowel anchoring, mesh basecoat, sill fitting, and silicone render application—are performed entirely on the exterior facade. There is zero mess inside your house, no loss of interior room dimensions, and zero disruption to your daily routine.